#pragma once

/*
 * Copyright (c) 2013-2020, Roland Bock, MacDue
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *   Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 *
 *   Redistributions in binary form must reproduce the above copyright notice, this
 *   list of conditions and the following disclaimer in the documentation and/or
 *   other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <sqlpp11/type_traits.h>
#include <sqlpp11/alias_operators.h>
#include <sqlpp11/expression_operators.h>

namespace sqlpp
{
  template <typename AggregateExpr>
  struct over_t : public expression_operators<over_t<AggregateExpr>, integral>,
                  public alias_operators<over_t<AggregateExpr>>
  {
    using _traits = make_traits<integral, tag::is_expression>;
    using _nodes = detail::type_vector<AggregateExpr, aggregate_function>;

    using _auto_alias_t = typename AggregateExpr::_auto_alias_t;

    over_t(AggregateExpr aggregate_expression)
      : _aggregate_expression(aggregate_expression)
    {
    }

    over_t(const over_t&) = default;
    over_t(over_t&&) = default;
    over_t& operator=(const over_t&) = default;
    over_t& operator=(over_t&&) = default;
    ~over_t() = default;

    AggregateExpr _aggregate_expression;
  };

  template <typename Context, typename AggregateExpr>
  Context& serialize(const over_t<AggregateExpr>& t, Context& context)
  {
    serialize_operand(t._aggregate_expression, context);
    context << " OVER()";
    return context;
  }
}  // namespace sqlpp
